A Twitter user has reportedly come across an anonymous message, broadcasted through the Blockstream satellite, giving out hints for a treasure hunt for a $1 million worth of Bitcoin.

According to the mysterious message, 1,000 cryptographic keys to the massive Bitcoin bounty have been divided and hidden in secret spots across the globe. The fastest hunter to find the first 400 keys and put them together by “using Shamir’s spell of recombination.”, will be the master of the final treasure. Adi Shamir, an Israeli engineer, created Shamir’s Secret Sharing – a cryptographic algorithm to provide a distributed way of data safekeeping.

The clues to the keys are encrypted in questions, posted to the website “SatoshiTreasure”. Crypto enthusiasts will have to utilize their knowledge in the field to solve the high-level puzzles and collect further clues.

The destination to the first three keys have been revealed and can be located using GPS signals, however, and are listed as below:

First key (available since April 16th):

37.784038, -122.417812 (Tenderloin, San Francisco).

40.758931, -73.985099 (Broadway, New York).

34.062628, -118.129485 (Monterey Park, CA).

42.360342, -71.087282 (Cambridge, MA).

Second key (April 17th):

39.93685, 116.45426 (Beijing Shi, China).

22.281185, 114.156715 (Queen’s Road Central, Hong Kong).

35.654811, 139.748974 (Minato City, Japan).

37.583827, 127.031035 (Seoul, South Korea).

Third key (April 17th)

51.5082944, -0.2013407 (Notting Hill, London).

0.3474019, 32.6036514 (Kampala, Uganda).

-33.8881323, 151.1901988 (Camperdown NSW, Australia).

-34.596118, -58.373290 (Buenos Aires, Argentina).

Crypto hunters can officially embark on their journeys to these locations starting April 16th.